Add & utilize a simple_exec utility function

(Bitbake rev: 5ead16f14f996bcbb2fb14277b8ce5a9317b8160)

Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

bitbake/lib/bb/event.py

@@ -58,7 +58,7 @@ def fire_class_handlers(event, d):
         event.data = d
         if type(h).__name__ == "code":
             locals = {"e": event}
-            exec h in bb.utils._context, locals
+            bb.utils.simple_exec(h, locals)
             bb.utils.better_eval("tmpHandler(e)", locals)
         else:
             h(event)

bitbake/lib/bb/utils.py

@@ -222,6 +222,9 @@ def better_exec(code, context, text, realfile):
         
         raise
 
+def simple_exec(code, context):
+    exec code in _context, context
+
 def better_eval(source, locals):
     return eval(source, _context, locals)